These functions were removed in Tensorflow version 2.6. See details for how to update your code:

predict_proba(object, x, batch_size = NULL, verbose = 0, steps = NULL)

predict_classes(object, x, batch_size = NULL, verbose = 0, steps = NULL)

Arguments

object

Keras model object

x

Input data (vector, matrix, or array). You can also pass a tfdataset or a generator returning a list with (inputs, targets) or (inputs, targets, sample_weights).

batch_size

Integer. If unspecified, it will default to 32.

verbose

Verbosity mode, 0 or 1.

steps

Total number of steps (batches of samples) before declaring the evaluation round finished. The default NULL is equal to the number of samples in your dataset divided by the batch size.

Details

How to update your code:

predict_proba(): use predict() directly.

predict_classes():

  • If your model does multi-class classification: (e.g. if it uses a softmax last-layer activation).

     model %>% predict(x) %>% k_argmax()

  • if your model does binary classification (e.g. if it uses a sigmoid last-layer activation).

     model %>% predict(x) %>% `>`(0.5) %>% k_cast("int32")

The input samples are processed batch by batch.

See also